package com.example.springblog.config;

import com.example.springblog.model.Result;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.SneakyThrows;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**
 * Description:
 * Date: 2024-08-26
 * Time: 21:17
 */
@ControllerAdvice
public class ResponseAdvice implements ResponseBodyAdvice {

    @Autowired
    private ObjectMapper objectMapper;
    /**
     * 全部进行统一结果返回
     * @param returnType
     * @param converterType
     * @return
     */
    @Override
    public boolean supports(MethodParameter returnType, Class converterType) {
        return true;
    }

    @SneakyThrows
    @Override
    public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
        if(body instanceof Result) return body;
        if(body instanceof String) return objectMapper.writeValueAsString(Result.success(body));
        return Result.success(body);
    }
}
